On this episode you are going to see how to upgrade your PSP to official firmware 6.31 .
Further info at http://lgallardo.com/en/2010/07/31/como-actualizar-la-psp-al-firmware-6-31/
Watch the Spanish version here: http://lgallardo.com/2010/07/31/como-actualizar-la-psp-al-firmware-6-31/